Flier construction



Aug. 1, 1933. M, J. MQHALE FLIER CONSTRUCTION Filed Feb. 19, 1931Mew/15L J Ma 1 4a,

5- w W a??? l m I w mill 30 tially Patented Aug. .1, 1933 omrso STATESPATENT OFFICE",

' such feet.

the engagement of the eccentric foot with the retaining shoulder thebushing.

Such prior art installations are open to numerous objections, the chiefof which are the increased cost in preparing the eccentric foot and thewear on 'thelatter due to the single point con-, tact of its surfacewhichengages the retaining shoulder of the bushing.

t is an object of this invention to provide an improved bushing forinsertion into bobbins.

Yet another object of this invention is the provision of an improvedflier block and retaining means therefor, the latter being adapted forinsertion intobobbins.

A further object of this invention is the provision of improved flierblock retaining bushings adapted to providea bearing surface of substan-180 for the retaining flanges ofthe blocks.

These and other desirable objects and advanta'ges of the presentinvention will be described in the accompanying specification andillustrated in the drawing, certain preferredembodiments being disclosedby wayof illustration only, for, since the underlying principles may beembodied in other specific constructions, it is not intended to belimited to the ones here shown, except as closed the usual bobbins I,mounted on spindles. 2, which are tapered to engage the central axis ofthe bobbins. The spindles are provided at their upper portions withsections 3 of uniform diamsuch limitations are clearly imposed by theap-.

eter which are adapted to support the freely rotatable flier blocks, 4,5, shown inFigs. 1 and 2 respectively.

The improved flier blocks which form the essential part of the presentinvention are similar in construction to those shown and claimed in myapplications Serial Nos. 458,212, and 489,401, filed May 31,-1930andOctober 17,1930, andare dis tinguished therefrom in that the bottomportion is provided with a retaining'foot or flange 6 of uniformexternal diameter coaxial with the longitudin'al axis of the block. Byproviding a re taining foot or flange of uniform diameter, it ispossible to form the blocks in an automatic ma-, chine, and to avoid theusual step of punching or grinding off a portion of such flange to forman eccentric foot.

The blocks may be provided with any suitable type of flier wires 8,which are here shown as of the drop arm type, and which are retained inor on the blocks by any suitable means such as a knurled nut 9 ortheintegral slotted head 10, the details of whichare shown and claimed inmy applications above referred to.

The footed members or blocks 4, 5, are respectively adapted forengagement with retaining bushings 11, 12, which are inserted in thebobbins. These bushings comprise dished members, having skirted portions13, adapted to engage suitable depressions 14 formed in the bobbins andare concentric with the axis of the spindles 2 for a purpose to bedescribed more in detail hereinafter.

The novel bushings of the present invention are characterized by theprovision of an improved or extended'bearing surface or surfaces, aswill now be described in some detail. Referring more particularly'toFig. 3, it will be noted that bushing 11 is provided with a non-circularaperture 17 in the end, which aperture may be substantially oval shaped,as shown. By inserting the foot 6 of a flier block into the aperture 17,the said foot may be introduced into the bushing and the block movedover so as to permit the section3 of the spindle to pass therethroughand to hold it in bearing engagement with the shoulder or end portion 18of thebushing.

.It will be noted that with this construction the foot 6 is adapted forbearing engagementwith the end 18 of bushing 11 over the major portionof a circle extending from point 19 around to point 20. This is indecided contrast to any bearing made possible by use of an eccentricfoot where the bearing surface is of necessity considerably less than asemi-circumference. By this means substantially the entire bearingsurface of member 6 suitable manner.

is in bearing engagement with the retaining bushs ing 11 and due to theuniform distribution of the bearing forces it attains a longer life inuse, consequent upon the uniform attrition or wearing down of the saidmember 6. The members 11 may be formed of any suitable material such ascopper, brass, steel or the like, and may be dished in any suitablepunching apparatus and the apertures 1'7 formed by a simple punchingoperation. These bushings may be readily inserted or removed fromthebobbins.

Referring now to Figs. 4 and 5, the improved bushing 12 is similar inconstruction to the bushing 11 and is provided with an aperture 21 whichis concentric with the apron or skirt 13. In addition, there is providedin the endthereof a trans-- verse slot 22 whichis situated at one sideof the circularaperture and is adapted to permit the insertion of theretaining flange or foot 6 of the flier blocks. The edge of the bushingend may be forced downwardly as indicated at 24 to per mit the slidingof the block into position. This member has a central cut out portion 23which defines one side ofthe aperture 21 of the bushing. When the blockis in place, the member 6-is in bearing engagement with the bearingportion 18 jofflthe bushing overthe major portion of acircumference,thus providing a substantially even bearing surface over its entireextent, in a manner substantially similar to, that provided in bushing11.

The member 12 may be formed in a manner similar to that used for member11, slot 22 being readily cut out or punched out of the end at the sametime as the central aperture 21, or the circular aperture may be firstpunched out and then the transverse slot 22 formed in any The improvedbushings hereinabove described, in combination" with the novel flierblockcon- .struction, permit desirable economies both in tric foot11181131381, of uniform diameter and mounted for rotation on a spindle,a bobbin on said spindle, and a removable bushing having an ovoid shapedaperture in the end of said bobbin and in looking engagement with saidfoot.

2. A flier assembly for spinning machines, includingin combination, aflier having a concentric foot member of uniform diameter and. mountedfor rotation on a spindle, a bobbin on said spindle, and a bushinghaving a non-circular aperture in the end of .said bobbin in lockingengagement with said foot.

3. A flier assembly for spinning machines, including in combination, aflier having a concentric foot member and mounted for rotation on aspindle, a bobbin on said spindlaand a bushing havingalaterally slottedcentral aperture in the end of said bobbin in locking engagement withsaid foot. I

4. A flier assembly for spinning machines, including in combination, aflier having a concentric foot member of uniform diameter and mountedfor rotation on a spindle, a bobbin on said spindle and a bushing in theendof said bobbin having a circular aperture concentric with the axis ofthe bobbin and a slot at one side of said aperture, the bushing being inlocking engagement with the foot. a

5. Afli cr assembly for spinning machines, including in combination, aflier having a concentric foot member of uniform diameter and mountedfor rotation on a spindle, a bobbin on said spindle, and a bushing inthe end of said bobbin, comprising a dished member having an eccentricnon-circular aperture, the bushing being in locking engagement with thefoot.

6. A flier assembly for spinning machines, ineluding in combination, aflier having a concentric foot member of uniform diameter and mountedfor rotation on a spindle, a bobbin on said spindle, and a bushing inthe end of said bobbin, comprising a dished member having acircular'end'and an oval shaped opening formed in said end, the majoraxis of said opening substantially coinciding with a diameter of theend, the bushing being in locking engagement with the foot.

7. A bobbin including a bushing adapted for insertion in the endthereof, comprising a dished member, a circular aperture in said bushingconcentricwith the central axis of the bobbin and a slot formed at oneside of said aperture.

MICHAEL J. McHALE.

